0N/A

0N/A#include "precompiled.hpp"

0N/A#include "classfile/systemDictionary.hpp"

0N/A#include "code/codeCache.hpp"

0N/A#include "code/icBuffer.hpp"

0N/A#include "code/nmethod.hpp"

0N/A#include "code/vtableStubs.hpp"

0N/A#include "compiler/compileBroker.hpp"

0N/A#include "compiler/disassembler.hpp"

0N/A#include "gc_implementation/shared/markSweep.hpp"

0N/A#include "gc_interface/collectedHeap.hpp"

0N/A#include "interpreter/bytecodeHistogram.hpp"

0N/A#include "interpreter/interpreter.hpp"

0N/A#include "memory/resourceArea.hpp"

0N/A#include "memory/universe.hpp"

0N/A#include "oops/oop.inline.hpp"

0N/A#include "prims/privilegedStack.hpp"

0N/A#include "runtime/arguments.hpp"

0N/A#include "runtime/frame.hpp"

0N/A#include "runtime/java.hpp"

0N/A#include "runtime/sharedRuntime.hpp"

0N/A#include "runtime/stubCodeGenerator.hpp"

0N/A#include "runtime/stubRoutines.hpp"

0N/A#include "runtime/vframe.hpp"

0N/A#include "services/heapDumper.hpp"

0N/A#include "utilities/defaultStream.hpp"

0N/A#include "utilities/events.hpp"

0N/A#include "utilities/top.hpp"

0N/A#include "utilities/vmError.hpp"

0N/A#ifdef TARGET_OS_FAMILY_linux

0N/A# include "os_linux.inline.hpp"

0N/A# include "thread_linux.inline.hpp"

0N/A#endif

0N/A#ifdef TARGET_OS_FAMILY_solaris

10N/A# include "os_solaris.inline.hpp"

10N/A# include "thread_solaris.inline.hpp"

10N/A#endif

10N/A#ifdef TARGET_OS_FAMILY_windows

0N/A# include "os_windows.inline.hpp"

0N/A# include "thread_windows.inline.hpp"

0N/A#endif

0N/A

0N/A#ifndef ASSERT

0N/A# ifdef _DEBUG

0N/A // NOTE: don't turn the lines below into a comment -- if you're getting

0N/A // a compile error here, change the settings to define ASSERT

0N/A ASSERT should be defined when _DEBUG is defined. It is not intended to be used for debugging

0N/A functions that do not slow down the system too much and thus can be left in optimized code.

0N/A On the other hand, the code should not be included in a production version.

0N/A# endif // _DEBUG

0N/A#endif // ASSERT

0N/A

0N/A

0N/A#ifdef _DEBUG

0N/A# ifndef ASSERT

0N/A configuration error: ASSERT must be defined in debug version

0N/A# endif // ASSERT

0N/A#endif // _DEBUG

0N/A

0N/A

0N/A#ifdef PRODUCT

0N/A# if -defined _DEBUG || -defined ASSERT

0N/A configuration error: ASSERT et al. must not be defined in PRODUCT version

0N/A# endif

0N/A#endif // PRODUCT

0N/A

0N/A

0N/Avoid warning(const char* format, ...) {

0N/A if (PrintWarnings) {

0N/A // In case error happens before init or during shutdown

0N/A if (tty == NULL) ostream_init();

0N/A

0N/A tty->print("%s warning: ", VM_Version::vm_name());

1220N/A va_list ap;

1220N/A va_start(ap, format);

1220N/A tty->vprint_cr(format, ap);

1220N/A va_end(ap);

1220N/A }

1220N/A if (BreakAtWarning) BREAKPOINT;

1220N/A}

1220N/A

1220N/A#ifndef PRODUCT

1220N/A

1220N/A#define is_token_break(ch) (isspace(ch) || (ch) == ',')

1220N/A

1220N/Astatic const char* last_file_name = NULL;

1220N/Astatic int last_line_no = -1;

1220N/A

0N/Abool error_is_suppressed(const char* file_name, int line_no) {

0N/A // The following 1-element cache requires that passed-in

0N/A // file names are always only constant literals.

0N/A if (file_name == last_file_name && line_no == last_line_no) return true;

0N/A

0N/A int file_name_len = (int)strlen(file_name);

0N/A char separator = os::file_separator()[0];

0N/A const char* base_name = strrchr(file_name, separator);

0N/A if (base_name == NULL)

0N/A base_name = file_name;

0N/A

0N/A // scan the SuppressErrorAt option

0N/A const char* cp = SuppressErrorAt;

0N/A for (;;) {

0N/A const char* sfile;

0N/A int sfile_len;

0N/A int sline;

0N/A bool noisy;

0N/A while ((*cp) != '\0' && is_token_break(*cp)) cp++;

914N/A if ((*cp) == '\0') break;

0N/A sfile = cp;

914N/A while ((*cp) != '\0' && !is_token_break(*cp) && (*cp) != ':') cp++;

0N/A sfile_len = cp - sfile;

0N/A if ((*cp) == ':') cp++;

2664N/A sline = 0;

2664N/A while ((*cp) != '\0' && isdigit(*cp)) {

2664N/A sline *= 10;

2664N/A sline += (*cp) - '0';

2664N/A cp++;

0N/A }

0N/A // "file:line!" means the assert suppression is not silent

2664N/A noisy = ((*cp) == '!');

0N/A while ((*cp) != '\0' && !is_token_break(*cp)) cp++;

0N/A // match the line

2664N/A if (sline != 0) {

0N/A if (sline != line_no) continue;

0N/A }

2664N/A // match the file

0N/A if (sfile_len > 0) {

0N/A const char* look = file_name;

0N/A const char* look_max = file_name + file_name_len - sfile_len;

0N/A const char* foundp;

0N/A bool match = false;

0N/A while (!match

0N/A && (foundp = strchr(look, sfile[0])) != NULL

914N/A && foundp <= look_max) {

914N/A match = true;

914N/A for (int i = 1; i < sfile_len; i++) {

914N/A if (sfile[i] != foundp[i]) {

914N/A match = false;

914N/A break;

914N/A }

914N/A }

914N/A look = foundp + 1;

914N/A }

914N/A if (!match) continue;

914N/A }

914N/A // got a match!

914N/A if (noisy) {

0N/A fdStream out(defaultStream::output_fd());

914N/A out.print_raw("[error suppressed at ");

0N/A out.print_raw(base_name);

0N/A char buf[16];

0N/A jio_snprintf(buf, sizeof(buf), ":%d]", line_no);

0N/A out.print_raw_cr(buf);

0N/A } else {

0N/A // update 1-element cache for fast silent matches

0N/A last_file_name = file_name;

0N/A last_line_no = line_no;

0N/A }

0N/A return true;

0N/A }

0N/A

0N/A if (!is_error_reported()) {

0N/A // print a friendly hint:

0N/A fdStream out(defaultStream::output_fd());

0N/A out.print_raw_cr("# To suppress the following error report, specify this argument");

0N/A out.print_raw ("# after -XX: or in .hotspotrc: SuppressErrorAt=");

0N/A out.print_raw (base_name);

0N/A char buf[16];

0N/A jio_snprintf(buf, sizeof(buf), ":%d", line_no);

0N/A out.print_raw_cr(buf);

0N/A }

0N/A return false;

0N/A}

0N/A

0N/A#undef is_token_break

0N/A

0N/A#else

0N/A

0N/A#define error_is_suppressed(file_name, line_no) (false)

0N/A

0N/A#endif //PRODUCT

0N/A

0N/Avoid report_vm_error(const char* file, int line, const char* error_msg,

0N/A const char* detail_msg)

0N/A{

0N/A if (Debugging || error_is_suppressed(file, line)) return;

0N/A Thread* const thread = ThreadLocalStorage::get_thread_slow();

420N/A VMError err(thread, file, line, error_msg, detail_msg);

420N/A err.report_and_die();

420N/A}

420N/A

420N/Avoid report_fatal(const char* file, int line, const char* message)

420N/A{

420N/A report_vm_error(file, line, "fatal error", message);

2807N/A}

0N/A

0N/Astatic jint _exiting_out_of_mem = 0;

0N/A

0N/Avoid report_vm_out_of_memory(const char* file, int line, size_t size,

0N/A const char* message) {

0N/A if (Debugging) return;

0N/A

0N/A // We try to gather additional information for the first out of memory

0N/A // error only; gathering additional data might cause an allocation and a

0N/A // recursive out_of_memory condition.

0N/A

0N/A const jint exiting = 1;

0N/A // If we succeed in changing the value, we're the first one in.

0N/A bool first_time_here = Atomic::xchg(exiting, &_exiting_out_of_mem) != exiting;

0N/A

0N/A if (first_time_here) {

0N/A Thread* thread = ThreadLocalStorage::get_thread_slow();

0N/A VMError(thread, file, line, size, message).report_and_die();

0N/A }

0N/A

0N/A // Dump core and abort

0N/A vm_abort(true);

0N/A}

0N/A

0N/Avoid report_should_not_call(const char* file, int line) {

0N/A report_vm_error(file, line, "ShouldNotCall()");

0N/A}

0N/A

0N/Avoid report_should_not_reach_here(const char* file, int line) {

0N/A report_vm_error(file, line, "ShouldNotReachHere()");

0N/A}

0N/A

0N/Avoid report_unimplemented(const char* file, int line) {

0N/A report_vm_error(file, line, "Unimplemented()");

0N/A}

0N/A

0N/Avoid report_untested(const char* file, int line, const char* message) {

0N/A#ifndef PRODUCT

0N/A warning("Untested: %s in %s: %d\n", message, file, line);

0N/A#endif // PRODUCT

0N/A}

0N/A

0N/Avoid report_out_of_shared_space(SharedSpaceType shared_space) {

0N/A static const char* name[] = {

0N/A "permanent generation",

0N/A "shared read only space",

0N/A "shared read write space",

0N/A "shared miscellaneous data space"

0N/A };

0N/A static const char* flag[] = {

0N/A "PermGen",

0N/A "SharedReadOnlySize",

0N/A "SharedReadWriteSize",

0N/A "SharedMiscDataSize"

0N/A };

0N/A

0N/A warning("\nThe %s is not large enough\n"

0N/A "to preload requested classes. Use -XX:%s=\n"

0N/A "to increase the initial size of %s.\n",

0N/A name[shared_space], flag[shared_space], name[shared_space]);

0N/A exit(2);

0N/A}

0N/A

0N/Avoid report_java_out_of_memory(const char* message) {

0N/A static jint out_of_memory_reported = 0;

0N/A

167N/A // A number of threads may attempt to report OutOfMemoryError at around the

167N/A // same time. To avoid dumping the heap or executing the data collection

167N/A // commands multiple times we just do it once when the first threads reports

0N/A // the error.

0N/A if (Atomic::cmpxchg(1, &out_of_memory_reported, 0) == 0) {

0N/A // create heap dump before OnOutOfMemoryError commands are executed

0N/A if (HeapDumpOnOutOfMemoryError) {

0N/A tty->print_cr("java.lang.OutOfMemoryError: %s", message);

0N/A HeapDumper::dump_heap_from_oome();

0N/A }

1365N/A

0N/A if (OnOutOfMemoryError && OnOutOfMemoryError[0]) {

0N/A VMError err(message);

0N/A err.report_java_out_of_memory();

0N/A }

0N/A }

0N/A}

0N/A

0N/A

0N/Aextern "C" void ps();

0N/A

0N/Astatic bool error_reported = false;

0N/A

0N/Avoid set_error_reported() {

0N/A error_reported = true;

0N/A}

0N/A

0N/Abool is_error_reported() {

0N/A return error_reported;

0N/A}

0N/A

0N/A#ifndef PRODUCT

0N/A#include <signal.h>

0N/A

0N/Avoid test_error_handler(size_t test_num)

0N/A{

0N/A if (test_num == 0) return;

0N/A

0N/A // If asserts are disabled, use the corresponding guarantee instead.

0N/A size_t n = test_num;

0N/A NOT_DEBUG(if (n <= 2) n += 2);

0N/A

0N/A const char* const str = "hello";

0N/A const size_t num = (size_t)os::vm_page_size();

0N/A

0N/A const char* const eol = os::line_separator();

0N/A const char* const msg = "this message should be truncated during formatting";

0N/A

0N/A // Keep this in sync with test/runtime/6888954/vmerrors.sh.

0N/A switch (n) {

0N/A case 1: assert(str == NULL, "expected null");

0N/A case 2: assert(num == 1023 && *str == 'X',

0N/A err_msg("num=" SIZE_FORMAT " str=\"%s\"", num, str));

0N/A case 3: guarantee(str == NULL, "expected null");

0N/A case 4: guarantee(num == 1023 && *str == 'X',

0N/A err_msg("num=" SIZE_FORMAT " str=\"%s\"", num, str));

0N/A case 5: fatal("expected null");

0N/A case 6: fatal(err_msg("num=" SIZE_FORMAT " str=\"%s\"", num, str));

0N/A case 7: fatal(err_msg("%s%s# %s%s# %s%s# %s%s# %s%s# "

0N/A "%s%s# %s%s# %s%s# %s%s# %s%s# "

0N/A "%s%s# %s%s# %s%s# %s%s# %s",

0N/A msg, eol, msg, eol, msg, eol, msg, eol, msg, eol,

0N/A msg, eol, msg, eol, msg, eol, msg, eol, msg, eol,

0N/A msg, eol, msg, eol, msg, eol, msg, eol, msg));

0N/A case 8: vm_exit_out_of_memory(num, "ChunkPool::allocate");

0N/A case 9: ShouldNotCallThis();

0N/A case 10: ShouldNotReachHere();

0N/A case 11: Unimplemented();

0N/A // This is last because it does not generate an hs_err* file on Windows.

0N/A case 12: os::signal_raise(SIGSEGV);

0N/A

0N/A default: ShouldNotReachHere();

0N/A }

0N/A}

0N/A#endif // #ifndef PRODUCT

0N/A

0N/A

0N/A#ifndef PRODUCT

0N/A

0N/Aclass Command : public StackObj {

0N/A private:

0N/A ResourceMark rm;

0N/A ResetNoHandleMark rnhm;

0N/A HandleMark hm;

0N/A bool debug_save;

1220N/A public:

0N/A static int level;

0N/A Command(const char* str) {

0N/A debug_save = Debugging;

1220N/A Debugging = true;

1220N/A if (level++ > 0) return;

1220N/A tty->cr();

1220N/A tty->print_cr("\"Executing %s\"", str);

1220N/A }

0N/A

0N/A ~Command() { tty->flush(); Debugging = debug_save; level--; }

0N/A};

0N/A

0N/Aint Command::level = 0;

533N/A

533N/Aextern "C" void blob(CodeBlob* cb) {

0N/A Command c("blob");

0N/A cb->print();

0N/A}

533N/A

533N/A

0N/Aextern "C" void dump_vtable(address p) {

533N/A Command c("dump_vtable");

533N/A klassOop k = (klassOop)p;

533N/A instanceKlass::cast(k)->vtable()->print();

533N/A}

533N/A

533N/A

533N/Aextern "C" void nm(intptr_t p) {

533N/A // Actually we look through all CodeBlobs (the nm name has been kept for backwards compatability)

533N/A Command c("nm");

533N/A CodeBlob* cb = CodeCache::find_blob((address)p);

533N/A if (cb == NULL) {

533N/A tty->print_cr("NULL");

533N/A } else {

533N/A cb->print();

533N/A }

533N/A}

533N/A

533N/A

533N/Aextern "C" void disnm(intptr_t p) {

533N/A Command c("disnm");

533N/A CodeBlob* cb = CodeCache::find_blob((address) p);

533N/A nmethod* nm = cb->as_nmethod_or_null();

533N/A if (nm) {

533N/A nm->print();

533N/A Disassembler::decode(nm);

533N/A } else {

533N/A cb->print();

533N/A Disassembler::decode(cb);

533N/A }

533N/A}

533N/A

533N/A

533N/Aextern "C" void printnm(intptr_t p) {

533N/A char buffer[256];

533N/A sprintf(buffer, "printnm: " INTPTR_FORMAT, p);

533N/A Command c(buffer);

533N/A CodeBlob* cb = CodeCache::find_blob((address) p);

533N/A if (cb->is_nmethod()) {

533N/A nmethod* nm = (nmethod*)cb;

533N/A nm->print_nmethod(true);

533N/A }

533N/A}

533N/A

533N/A

533N/Aextern "C" void universe() {

533N/A Command c("universe");

533N/A Universe::print();

533N/A}

533N/A

533N/A

533N/Aextern "C" void verify() {

533N/A // try to run a verify on the entire system

533N/A // note: this may not be safe if we're not at a safepoint; for debugging,

533N/A // this manipulates the safepoint settings to avoid assertion failures

533N/A Command c("universe verify");

533N/A bool safe = SafepointSynchronize::is_at_safepoint();

0N/A if (!safe) {

0N/A tty->print_cr("warning: not at safepoint -- verify may fail");

0N/A SafepointSynchronize::set_is_at_safepoint();

0N/A }

0N/A // Ensure Eden top is correct before verification

0N/A Universe::heap()->prepare_for_verify();

0N/A Universe::verify(true);

0N/A if (!safe) SafepointSynchronize::set_is_not_at_safepoint();

0N/A}

0N/A

0N/A

0N/Aextern "C" void pp(void* p) {

0N/A Command c("pp");

0N/A FlagSetting fl(PrintVMMessages, true);

0N/A if (Universe::heap()->is_in(p)) {

0N/A oop obj = oop(p);

0N/A obj->print();

0N/A } else {

0N/A tty->print("%#p", p);

0N/A }

0N/A}

0N/A

0N/A

0N/Aextern "C" void pa(intptr_t p) { ((AllocatedObj*) p)->print(); }

10N/Aextern "C" void findpc(intptr_t x);

10N/A

10N/Aextern "C" void ps() { // print stack

0N/A Command c("ps");

0N/A

10N/A

10N/A // Prints the stack of the current Java thread

10N/A JavaThread* p = JavaThread::active();

10N/A tty->print(" for thread: ");

10N/A p->print();

10N/A tty->cr();

10N/A

10N/A if (p->has_last_Java_frame()) {

10N/A // If the last_Java_fp is set we are in C land and

10N/A // can call the standard stack_trace function.

10N/A p->trace_stack();

10N/A } else {

0N/A frame f = os::current_frame();

10N/A RegisterMap reg_map(p);

0N/A f = f.sender(&reg_map);

10N/A tty->print("(guessing starting frame id=%#p based on current fp)\n", f.id());

0N/A p->trace_stack_from(vframe::new_vframe(&f, &reg_map, p));

0N/A pd_ps(f);

160N/A }

160N/A

160N/A}

160N/A

160N/A

160N/Aextern "C" void psf() { // print stack frames

160N/A {

10N/A Command c("psf");

10N/A JavaThread* p = JavaThread::active();

10N/A tty->print(" for thread: ");

10N/A p->print();

10N/A tty->cr();

160N/A if (p->has_last_Java_frame()) {

160N/A p->trace_frames();

10N/A }

10N/A }

10N/A}

10N/A

10N/A

10N/Aextern "C" void threads() {

10N/A Command c("threads");

10N/A Threads::print(false, true);

10N/A}

10N/A

10N/A

10N/Aextern "C" void psd() {

10N/A Command c("psd");

10N/A SystemDictionary::print();

10N/A}

10N/A

10N/A

10N/Aextern "C" void safepoints() {

10N/A Command c("safepoints");

0N/A SafepointSynchronize::print_state();

0N/A}

0N/A

0N/A

0N/Aextern "C" void pss() { // print all stacks

0N/A Command c("pss");

0N/A Threads::print(true, true);

0N/A}

0N/A

0N/A

0N/Aextern "C" void debug() { // to set things up for compiler debugging

0N/A Command c("debug");

0N/A WizardMode = true;

0N/A PrintVMMessages = PrintCompilation = true;

0N/A PrintInlining = PrintAssembly = true;

0N/A tty->flush();

0N/A}

0N/A

0N/A

1173N/Aextern "C" void ndebug() { // undo debug()

0N/A Command c("ndebug");

0N/A PrintCompilation = false;

0N/A PrintInlining = PrintAssembly = false;

0N/A tty->flush();

0N/A}

0N/A

0N/A

0N/Aextern "C" void flush() {

0N/A Command c("flush");

0N/A tty->flush();

535N/A}

535N/A

535N/A

535N/Aextern "C" void events() {

535N/A Command c("events");

117N/A Events::print_last(tty, 50);

117N/A}

117N/A

117N/A

117N/Aextern "C" void nevents(int n) {

117N/A Command c("events");

117N/A Events::print_last(tty, n);

0N/A}

0N/A

0N/A

944N/Aextern "C" void pnl(intptr_t old_heap_addr) {

944N/A // Print New Location of old heap address

944N/A Command c("pnl");

0N/A#ifndef VALIDATE_MARK_SWEEP

944N/A tty->print_cr("Requires build with VALIDATE_MARK_SWEEP defined (debug build) and RecordMarkSweepCompaction enabled");

944N/A#else

944N/A MarkSweep::print_new_location_of_heap_address((HeapWord*) old_heap_addr);

944N/A#endif

0N/A}

944N/A

944N/A

944N/Aextern "C" methodOop findm(intptr_t pc) {

944N/A Command c("findm");

944N/A nmethod* nm = CodeCache::find_nmethod((address)pc);

944N/A return (nm == NULL) ? (methodOop)NULL : nm->method();

914N/A}

914N/A

944N/A

944N/Aextern "C" nmethod* findnm(intptr_t addr) {

944N/A Command c("findnm");

return CodeCache::find_nmethod((address)addr);

}

static address same_page(address x, address y) {

intptr_t page_bits = -os::vm_page_size();

if ((intptr_t(x) & page_bits) == (intptr_t(y) & page_bits)) {

return x;

} else if (x > y) {

return (address)(intptr_t(y) | ~page_bits) + 1;

} else {

return (address)(intptr_t(y) & page_bits);

}

}

class LookForRefInGenClosure : public OopsInGenClosure {

public:

oop target;

void do_oop(oop* o) {

if (o != NULL && *o == target) {

tty->print_cr(INTPTR_FORMAT, o);

}

}

void do_oop(narrowOop* o) { ShouldNotReachHere(); }

};

class LookForRefInObjectClosure : public ObjectClosure {

private:

LookForRefInGenClosure look_in_object;

public:

LookForRefInObjectClosure(oop target) { look_in_object.target = target; }

void do_object(oop obj) {

obj->oop_iterate(&look_in_object);

}

};

static void findref(intptr_t x) {

CollectedHeap *ch = Universe::heap();

LookForRefInGenClosure lookFor;

lookFor.target = (oop) x;

LookForRefInObjectClosure look_in_object((oop) x);

tty->print_cr("Searching heap:");

ch->object_iterate(&look_in_object);

tty->print_cr("Searching strong roots:");

Universe::oops_do(&lookFor, false);

JNIHandles::oops_do(&lookFor); // Global (strong) JNI handles

Threads::oops_do(&lookFor, NULL);

ObjectSynchronizer::oops_do(&lookFor);

//FlatProfiler::oops_do(&lookFor);

SystemDictionary::oops_do(&lookFor);

tty->print_cr("Searching code cache:");

CodeCache::oops_do(&lookFor);

tty->print_cr("Done.");

}

class FindClassObjectClosure: public ObjectClosure {

private:

const char* _target;

public:

FindClassObjectClosure(const char name[]) { _target = name; }

virtual void do_object(oop obj) {

if (obj->is_klass()) {

Klass* k = klassOop(obj)->klass_part();

if (k->name() != NULL) {

ResourceMark rm;

const char* ext = k->external_name();

if ( strcmp(_target, ext) == 0 ) {

tty->print_cr("Found " INTPTR_FORMAT, obj);

obj->print();

}

}

}

}

};

extern "C" void findclass(const char name[]) {

Command c("findclass");

if (name != NULL) {

tty->print_cr("Finding class %s -> ", name);

FindClassObjectClosure srch(name);

Universe::heap()->permanent_object_iterate(&srch);

}

}

extern "C" void hsfind(intptr_t x) {

Command c("hsfind");

os::print_location(tty, x, false);

}

extern "C" void hsfindref(intptr_t x) {

Command c("hsfindref");

findref(x);

}

extern "C" void find(intptr_t x) {

Command c("find");

os::print_location(tty, x, false);

}

extern "C" void findpc(intptr_t x) {

Command c("findpc");

os::print_location(tty, x, true);

}

void pp(intptr_t p) { pp((void*)p); }

void pp(oop p) { pp((void*)p); }

void help() {

Command c("help");

tty->print_cr("basic");

tty->print_cr(" pp(void* p) - try to make sense of p");

tty->print_cr(" pv(intptr_t p)- ((PrintableResourceObj*) p)->print()");

tty->print_cr(" ps() - print current thread stack");

tty->print_cr(" pss() - print all thread stacks");

tty->print_cr(" pm(int pc) - print methodOop given compiled PC");

tty->print_cr(" findm(intptr_t pc) - finds methodOop");

tty->print_cr(" find(intptr_t x) - finds & prints nmethod/stub/bytecode/oop based on pointer into it");

tty->print_cr("misc.");

tty->print_cr(" flush() - flushes the log file");

tty->print_cr(" events() - dump last 50 events");

tty->print_cr("compiler debugging");

tty->print_cr(" debug() - to set things up for compiler debugging");

tty->print_cr(" ndebug() - undo debug");

}

#if 0

enum CommandID {

CMDID_HELP,

CMDID_QUIT,

CMDID_HSFIND,

CMDID_PSS,

CMDID_PS,

CMDID_PSF,

CMDID_FINDM,

CMDID_FINDNM,

CMDID_PP,

CMDID_BPT,

CMDID_EXIT,

CMDID_VERIFY,

CMDID_THREADS,

CMDID_ILLEGAL = 99

};

struct CommandParser {

char *name;

CommandID code;

char *description;

};

struct CommandParser CommandList[] = {

(char *)"help", CMDID_HELP, " Dump this list",

(char *)"quit", CMDID_QUIT, " Return from this routine",

(char *)"hsfind", CMDID_HSFIND, "Perform an hsfind on an address",

(char *)"ps", CMDID_PS, " Print Current Thread Stack Trace",

(char *)"pss", CMDID_PSS, " Print All Thread Stack Trace",

(char *)"psf", CMDID_PSF, " Print All Stack Frames",

(char *)"findm", CMDID_FINDM, " Find a methodOop from a PC",

(char *)"findnm", CMDID_FINDNM, "Find an nmethod from a PC",

(char *)"pp", CMDID_PP, " Find out something about a pointer",

(char *)"break", CMDID_BPT, " Execute a breakpoint",

(char *)"exitvm", CMDID_EXIT, "Exit the VM",

(char *)"verify", CMDID_VERIFY, "Perform a Heap Verify",

(char *)"thread", CMDID_THREADS, "Dump Info on all Threads",

(char *)0, CMDID_ILLEGAL

};

void get_debug_command()

{

ssize_t count;

int i,j;

bool gotcommand;

intptr_t addr;

char buffer[256];

nmethod *nm;

methodOop m;

tty->print_cr("You have entered the diagnostic command interpreter");

tty->print("The supported commands are:\n");

for ( i=0; ; i++ ) {

if ( CommandList[i].code == CMDID_ILLEGAL )

break;

tty->print_cr(" %s \n", CommandList[i].name );

}

while ( 1 ) {

gotcommand = false;

tty->print("Please enter a command: ");

count = scanf("%s", buffer) ;

if ( count >=0 ) {

for ( i=0; ; i++ ) {

if ( CommandList[i].code == CMDID_ILLEGAL ) {

if (!gotcommand) tty->print("Invalid command, please try again\n");

break;

}

if ( strcmp(buffer, CommandList[i].name) == 0 ) {

gotcommand = true;

switch ( CommandList[i].code ) {

case CMDID_PS:

ps();

break;

case CMDID_PSS:

pss();

break;

case CMDID_PSF:

psf();

break;

case CMDID_FINDM:

tty->print("Please enter the hex addr to pass to findm: ");

scanf("%I64X", &addr);

m = (methodOop)findm(addr);

tty->print("findm(0x%I64X) returned 0x%I64X\n", addr, m);

break;

case CMDID_FINDNM:

tty->print("Please enter the hex addr to pass to findnm: ");

scanf("%I64X", &addr);

nm = (nmethod*)findnm(addr);

tty->print("findnm(0x%I64X) returned 0x%I64X\n", addr, nm);

break;

case CMDID_PP:

tty->print("Please enter the hex addr to pass to pp: ");

scanf("%I64X", &addr);

pp((void*)addr);

break;

case CMDID_EXIT:

exit(0);

case CMDID_HELP:

tty->print("Here are the supported commands: ");

for ( j=0; ; j++ ) {

if ( CommandList[j].code == CMDID_ILLEGAL )

break;

tty->print_cr(" %s -- %s\n", CommandList[j].name,

CommandList[j].description );

}

break;

case CMDID_QUIT:

return;

break;

case CMDID_BPT:

BREAKPOINT;

break;

case CMDID_VERIFY:

verify();;

break;

case CMDID_THREADS:

threads();;

break;

case CMDID_HSFIND:

tty->print("Please enter the hex addr to pass to hsfind: ");

scanf("%I64X", &addr);

tty->print("Calling hsfind(0x%I64X)\n", addr);

hsfind(addr);

break;

default:

case CMDID_ILLEGAL:

break;

}

}

}

}

}

}

#endif

#endif // PRODUCT